EP 4054196 A1 20220907 - METHOD FOR TRANSFORM-BASED IMAGE CODING AND APPARATUS THEREFOR
Title (en)
METHOD FOR TRANSFORM-BASED IMAGE CODING AND APPARATUS THEREFOR
Title (de)
VERFAHREN ZUR TRANSFORMATIONSBASIERTEN BILDCODIERUNG UND VORRICHTUNG DAFÜR
Title (fr)
PROCÉDÉ DE CODAGE D'IMAGES BASÉE SUR UNE TRANSFORMÉE ET APPAREIL ASSOCIÉ
Publication
Application
Priority
- US 201962927667 P 20191029
- KR 2020014914 W 20201029
Abstract (en)
A method for image decoding, according to the present document, may comprise the steps of: deriving an intra prediction mode of a chroma block as a cross-component linear model (CCLM) mode; updating the intra prediction mode of the chroma block on the basis of an intra prediction mode of a luma block corresponding to the chroma block; and determining an LFNST set including LFNST matrices on the basis of the updated intra prediction mode, wherein the updated intra prediction mode is derived as an intra prediction mode corresponding to a specific position in the luma block, and the specific position is set on the basis of a color format of the chroma block.
IPC 8 full level
H04N 19/61 (2014.01); H04N 19/11 (2014.01); H04N 19/18 (2014.01); H04N 19/186 (2014.01); H04N 19/593 (2014.01); H04N 19/70 (2014.01)
CPC (source: EP KR US)
H04N 19/11 (2014.11 - EP KR); H04N 19/12 (2014.11 - EP); H04N 19/132 (2014.11 - KR US); H04N 19/157 (2014.11 - EP); H04N 19/159 (2014.11 - US); H04N 19/176 (2014.11 - KR US); H04N 19/18 (2014.11 - EP KR US); H04N 19/186 (2014.11 - EP US); H04N 19/593 (2014.11 - EP KR); H04N 19/61 (2014.11 - KR); H04N 19/70 (2014.11 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4054196 A1 20220907; EP 4054196 A4 20231213; AU 2020376686 A1 20220616; AU 2020376686 B2 20230316; AU 2023203790 A1 20230713; BR 112022007946 A2 20220712; CA 3159068 A1 20210506; CN 114846798 A 20220802; CN 114846798 B 20240405; CN 118175335 A 20240611; CN 118175336 A 20240611; CN 118175337 A 20240611; CN 118175338 A 20240611; JP 2022546634 A 20221104; JP 2023041899 A 20230324; JP 2024026419 A 20240228; JP 7223208 B2 20230215; JP 7408856 B2 20240105; KR 102529117 B1 20230504; KR 20220057613 A 20220509; KR 20230062685 A 20230509; MX 2022005103 A 20220711; US 11758142 B2 20230912; US 2022264101 A1 20220818; US 2023379473 A1 20231123; WO 2021086055 A1 20210506
DOCDB simple family (application)
EP 20882386 A 20201029; AU 2020376686 A 20201029; AU 2023203790 A 20230616; BR 112022007946 A 20201029; CA 3159068 A 20201029; CN 202080089152 A 20201029; CN 202410320104 A 20201029; CN 202410320106 A 20201029; CN 202410320109 A 20201029; CN 202410320120 A 20201029; JP 2022525491 A 20201029; JP 2023015146 A 20230203; JP 2023214457 A 20231220; KR 2020014914 W 20201029; KR 20227011605 A 20201029; KR 20237014791 A 20201029; MX 2022005103 A 20201029; US 202217729400 A 20220426; US 202318360351 A 20230727